01 -
Bring a large pot of salted water to a boil. Add cubed potatoes and cook until fork-tender, 12 to 15 minutes. Drain thoroughly and mash until smooth. Allow to cool slightly.
02 -
In a large mixing bowl, combine mashed potatoes, pumpkin purée, flour, egg, salt, and nutmeg. Mix gently just until a soft dough forms. If the dough is too sticky, sprinkle in additional flour as needed.
03 -
Transfer dough onto a floured surface. Divide into four portions. Roll each into a log about 3/4-inch thick, then cut into 1-inch pieces. For classic ridges, roll each piece over the tines of a fork.
04 -
Bring a large pot of salted water to a gentle boil. Working in batches, add gnocchi and cook until they float to the surface, about 2 to 3 minutes. Use a slotted spoon to transfer cooked gnocchi to a plate.
05 -
Heat butter and olive oil in a large skillet over medium heat. Add chopped sage and sauté for 1 to 2 minutes until fragrant.
06 -
Stir in pumpkin purée and milk. Simmer gently for 3 to 4 minutes, stirring frequently. Add grated Parmesan and season with salt and black pepper to taste.
07 -
Add cooked gnocchi to the skillet with the sauce. Toss gently to coat and heat through for 1 to 2 minutes.
08 -
Divide among plates and garnish with extra Parmesan and freshly ground black pepper. Serve immediately.